Error while decoding stream #0:1 - Just started happening on "some" movies (HEVC codec?)

[simonbnz]

Server Version#1.23.3.4707:
Player Version#4.60.3:

Seems to be when playing any HEVC codec movies… Any ideas

Jul 05, 2021 07:38:33.235 [0x3058d3000] Error — [Transcoder] Error while decoding stream #0:1: Unknown error occurred
Jul 05, 2021 07:38:33.236 [0x3058d3000] Error — [Transcoder] Too many packets buffered for output stream 0:0.
Jul 05, 2021 07:38:33.284 [0x3053aa000] Warning — [Transcode/wpwjih59b0eqcy165pt86iaq] Transcode runner appears to have died.
Jul 05, 2021 07:38:33.293 [0x305850000] Warning — [Transcode/wpwjih59b0eqcy165pt86iaq] Transcode runner appears to have died.

[simonbnz]

An update here. iOS Plex player works fine as well as Apple TV. This only happens when I either request my Mac to stream it, or the Samsung TV. This is 4K content and normally all my media uses Direct play for 4k content, but not in this case:

Jul 05, 2021 15:14:59.376 [0x3056c7000] Debug — [Transcode] MDE: Cannot direct stream audio stream due to codec eac3 when profile only allows aac
Jul 05, 2021 15:14:59.377 [0x3056c7000] Debug — [Transcode] Streaming Resource: Reached Decision id=34679 codes=(General=1001,Direct play not available; Conversion OK. Direct Play=3000,App cannot direct play this item. Direct play is disabled. Transcode=1001,Direct play not available; Conversion OK.) media=(id=92612 part=(id=92620 decision=transcode container=mpegts protocol=hls streams=(Video=(id=194520 decision=copy width=1920 height=800) Audio=(id=194521 decision=transcode bitrate=774 encoder=aac_at channels=6 rate=48000))))

[simonbnz]

OK I have now narrowed this down to a Mac only issue. I have installed plex on parallels with ubuntu and it works perfectly. Any ideas here?

[simonbnz]

OK… just installed plex for Mac on my Intel MacBook Pro and it works fine. This is specifically the build for the M1 Apple Silicon I think.

[simonbnz]

Forgot to mention. Running iOS 12 Public Beta